US2497051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chatter-free torque amplifier
Assignee: Honeywell Inc
•
Filing: 1944-08-12
•
Granted: 1950-02-07
•
Expires: 1964-08-12
Abstract
No abstract record available.
Inventors
- 👤 Rudolf F Wild
- 👤 Robert B Darnielle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:30
CPC Classifications
G; G05; G05D; G05D17/00; G05D17/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1838084A
Cited
US2126910A
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US2165510A
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US2132677A
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US2280019A
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US2260122A
Cited
US2379689A
Cited
US2407536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |